Route.cpp

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/*
 * SNode.C - a slim toolkit for network communication
 * Copyright (C) Volker Christian <me@vchrist.at>
 *               2020, 2021, 2022, 2023, 2024, 2025
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published
 * by the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 */
 
#include "express/Route.h"
 
#include "express/Controller.h"
#include "express/dispatcher/ApplicationDispatcher.h"
#include "express/dispatcher/MiddlewareDispatcher.h"
#include "express/dispatcher/RouterDispatcher.h"
 
#ifndef DOXYGEN_SHOULD_SKIP_THIS
 
#include <memory>
 
#endif /* DOXYGEN_SHOULD_SKIP_THIS */
 
#define DEFINE_ROUTE_REQUESTMETHOD(METHOD, HTTP_METHOD)
    Route& Route::METHOD(const std::function<void(const std::shared_ptr<Request>&, const std::shared_ptr<Response>&, Next&)>& lambda)
        const {
        return *(dispatcher->nextRoute = std::make_shared<Route>(
                     HTTP_METHOD, mountPoint.relativeMountPath, std::make_shared<dispatcher::MiddlewareDispatcher>(lambda)))
                    .get();
    }
    Route& Route::METHOD(const std::function<void(const std::shared_ptr<Request>&, const std::shared_ptr<Response>&)>& lambda) const {
        return *(dispatcher->nextRoute = std::make_shared<Route>(
                     HTTP_METHOD, mountPoint.relativeMountPath, std::make_shared<dispatcher::ApplicationDispatcher>(lambda)))
                    .get();
    }
 
namespace express {
 
    Route::Route()
        : mountPoint("use", "")
        , dispatcher(std::make_shared<dispatcher::RouterDispatcher>()) {
    }
 
    Route::Route(const std::string& method, const std::string& relativeMountPath, const std::shared_ptr<Dispatcher>& dispatcher)
        : mountPoint(method, relativeMountPath)
        , dispatcher(dispatcher) {
    }
 
    bool Route::dispatch(Controller& controller) {
        return dispatch(controller, "");
    }
 
    bool Route::dispatch(Controller& controller, const std::string& parentMountPath) {
        controller.setCurrentRoute(this);
 
        bool dispatched = dispatcher->dispatch(controller, parentMountPath, mountPoint);
 
        if (!dispatched) { // TODO: only call if parent route matched
            dispatched = controller.dispatchNext(parentMountPath);
        }
 
        return dispatched;
    }
 
    bool Route::dispatchNext(Controller& controller, const std::string& parentMountPath) {
        return dispatcher->dispatchNext(controller, parentMountPath);
    }
 
    DEFINE_ROUTE_REQUESTMETHOD(use, "use")
    DEFINE_ROUTE_REQUESTMETHOD(all, "all")
    DEFINE_ROUTE_REQUESTMETHOD(get, "GET")
    DEFINE_ROUTE_REQUESTMETHOD(put, "PUT")
    DEFINE_ROUTE_REQUESTMETHOD(post, "POST")
    DEFINE_ROUTE_REQUESTMETHOD(del, "DELETE")
    DEFINE_ROUTE_REQUESTMETHOD(connect, "CONNECT")
    DEFINE_ROUTE_REQUESTMETHOD(options, "OPTIONS")
    DEFINE_ROUTE_REQUESTMETHOD(trace, "TRACE")
    DEFINE_ROUTE_REQUESTMETHOD(patch, "PATCH")
    DEFINE_ROUTE_REQUESTMETHOD(head, "HEAD")
 
} // namespace express